Puzzle #73: Find The Two Numbers

This is a beautiful puzzle that came to me through an IITD friend (Sirisha), and I had not done before – thank you Sirisha!

There are two friends A and B. Their teacher calls them separately and tells A, the sum of two numbers (both between 0 and 9, repetition allowed) and tells B, the product of both numbers

A and B then talk. A says – I dont know the two numbers. B says – Even I dont. A says – Now I do. B says – even I do now

Both A and B are good at mathematics.

What are the two numbers?

As always, please send your answers directly to me at alokgoyal_2001@yahoo.com. If you like the puzzle, please share it with others. If you have interesting puzzles to share, please send them to me at my e-mail given above.


Happy number hunting!

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2 Responses to Puzzle #73: Find The Two Numbers

  1. Vishal Gupta says:

    The answer is 2 and 3.

    Had to take help of excel for killing options here ..


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